China's new 3d printing method fabricates objects in just 0.6 seconds

A research team at Tsinghua University in China has developed a groundbreaking 3D printing technique called Digital Incoherent Synthesis of Holographic light fields (DISH), which can fabricate complex millimeter-scale objects in just 0.6 seconds. Unlike traditional 3D printing methods that build objects layer-by-layer or point-by-point, DISH uses high-dimensional holographic light fields to simultaneously sculpt entire 3D structures within a resin container. This approach eliminates the need for moving parts or layer drying, achieving a high resolution of 12 micrometers—about one-fifth the thickness of a human hair—across a 1 cm depth range, far surpassing conventional lens depth-of-field limits. The DISH method employs a high-speed rotating periscope to project light from multiple angles and iterative hologram optimization, enabling ultra-fast volumetric additive manufacturing with a printing rate of 333 cubic millimeters per second. The technology works effectively with low-viscosity acryl